Most tests are divided into a "Mandatory Part" (Обязательная часть) for basic passing and a "Supplementary Part" for higher grades.
Identifying divisors and multiples, prime and composite numbers, and using divisibility rules for 2, 3, 5, 9, and 10.
These problems test your ability to understand relationships between varying quantities.
The book (Математика. 6 класс. Тесты. Часть 1) by I.V. Grishina and E.V. Lestova is a widely used workbook in Russian schools for assessing knowledge of the 6th-grade mathematics curriculum.